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O-I Experimental

O-I Experimental

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Revision as of 10:24, 21 May 2016Revision as of 10:25, 21 May 2016
Line 13:Line 13:
 |InTheGame_cons=  |InTheGame_cons=
 * Largest tank ever at Tier 5, easy to hit, and camo is very poor * Largest tank ever at Tier 5, easy to hit, and camo is very poor
?* Armor is rather flat and even when properly angled at 45 degrees the mini-turrets on the hull front mitigate it+* Armor is rather flat and even when properly angled at 45 degrees the mini-turrets on the hull front mitigate it, 10cm gun has low shell velocity and accuracy
?* Poor Premium round pen+
?* 10cm gun has low shell velocity and accuracy+
 * Weak fuel tanks, penetrating shots to the rear will often result in fire. * Weak fuel tanks, penetrating shots to the rear will often result in fire.
 * The only good tank in a otherwise awful line.  * The only good tank in a otherwise awful line.

Revision as of 10:25, 21 May 2016










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O-I Experimental

AnnoJ23_Mi_To.png
Battle Tier
1234567891011
Overview
Mouse over "
Well, the ones further down, of course.
" for more information
[Client Values; Actual values in
Specifically, the mismatch in crew values caused by commander's 10% crew skill bonus. Outside of a crew of 1 commander only, 100% crew is a fiction. The client values, given for 100% crew, will normally be taken into battle with 110% crew skill members aside from specific functions, causing their actual performance to deviate from the expected client value. These differences are taken into account in tooltip boxes.
]
445,000  Credits Cost
920920 HP Hit Points
99.1/100.578.81/0 t Weight Limit
Crew
  1. Commander
  2. Gunner
  3. Driver
  4. Radio Operator
  5. Radio Operator
  6. Loader
Mobility
11001200 hp Engine Power
25/12 km/h Speed Limit
2020 deg/s Traverse
11.115.23 hp/t Power/Wt Ratio
NoNo Pivot
Armor
125/70/70 mm Hull Armor
125/75/75125/75/75 mm Turret Armor
Armament







{{#ifeq:HOLLOW_CHARGE|ARMOR_PIERCING||



{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||


AP/HEAT/HE







{{#ifeq:HOLLOW_CHARGE|ARMOR_PIERCING||



{{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING||


AP/HEAT/HE
Shells




















130/4800/240




















130/4800/240
Shell Cost
360/360/440360/360/440 HP Damage
60/140/6060/140/60 mm Penetration



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5.71 r/m 

Standard Gun

Reload Times
Nominal: 10.5 s
50% Crew: 13.01 s
75% Crew: 11.36 s
100% Crew: 10.07 s
Rammer: 9.06 s
Vents: 9.85 s
Both: 8.86 s
Both and BiA: 8.67 s
Both and Max Crew %: 8.31 s

See Crew, Consumables, or Equipment for more information.



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5.71 r/m 

Standard Gun

Reload Times
Nominal: 10.5 s
50% Crew: 13.01 s
75% Crew: 11.36 s
100% Crew: 10.07 s
Rammer: 9.06 s
Vents: 9.85 s
Both: 8.86 s
Both and BiA: 8.67 s
Both and Max Crew %: 8.31 s

See Crew, Consumables, or Equipment for more information.
Rate of Fire






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2055.6

Standard Gun

Using Shell Type 1 (360 Damage):


Theoretical Damage Per Minute
Nominal DPM: 2055.6
50% Crew: 1659.6
75% Crew: 1900.8
100% Crew: 2145.6
100% Crew
Vents: 2192.4
Rammer: 2383.2
Both: 2437.2
Both and BiA: 2491.2
Both and Max Crew %: 2599.2

Advantageous Damage Per Minute
First-shot DPM: 2415.6
50% Crew: 2019.6
75% Crew: 2260.8
100% Crew: 2505.6
100% Crew
Rammer: 2743.2
Vents: 2552.4
Both: 2797.2
Both and BiA: 2851.2
Both and Max Crew %: 2959.2

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (360 Damage):


Theoretical Damage Per Minute
Nominal DPM: 2055.6
50% Crew: 1659.6
75% Crew: 1900.8
100% Crew: 2145.6
100% Crew
Vents: 2192.4
Rammer: 2383.2
Both: 2437.2
Both and BiA: 2491.2
Both and Max Crew %: 2599.2

Advantageous Damage Per Minute
First-shot DPM: 2415.6
50% Crew: 2019.6
75% Crew: 2260.8
100% Crew: 2505.6
100% Crew
Rammer: 2743.2
Vents: 2552.4
Both: 2797.2
Both and BiA: 2851.2
Both and Max Crew %: 2959.2

See here, here, or here for more information.

Standard Gun

Using Shell Type 3 (440 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 2512.4
50% Crew: 2028.4
75% Crew: 2323.2
100% Crew: 2622.4
100% Crew
Vents: 2679.6
Rammer: 2912.8
Both: 2978.8
Both and BiA: 3044.8
Both and Max Crew %: 3176.8

Advantageous Damage Per Minute
First-shot DPM: 2952.4
50% Crew: 2468.4
75% Crew: 2763.2
100% Crew: 3062.4
100% Crew
Rammer: 3352.8
Vents: 3119.6
Both: 3418.8
Both and BiA: 3484.8
Both and Max Crew %: 3616.8

See here, here, or here for more information.






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2055.6

Standard Gun

Using Shell Type 1 (360 Damage):


Theoretical Damage Per Minute
Nominal DPM: 2055.6
50% Crew: 1659.6
75% Crew: 1900.8
100% Crew: 2145.6
100% Crew
Vents: 2192.4
Rammer: 2383.2
Both: 2437.2
Both and BiA: 2491.2
Both and Max Crew %: 2599.2

Advantageous Damage Per Minute
First-shot DPM: 2415.6
50% Crew: 2019.6
75% Crew: 2260.8
100% Crew: 2505.6
100% Crew
Rammer: 2743.2
Vents: 2552.4
Both: 2797.2
Both and BiA: 2851.2
Both and Max Crew %: 2959.2

See here, here, or here for more information.

Standard Gun

Using Shell Type 2 (360 Damage):


Theoretical Damage Per Minute
Nominal DPM: 2055.6
50% Crew: 1659.6
75% Crew: 1900.8
100% Crew: 2145.6
100% Crew
Vents: 2192.4
Rammer: 2383.2
Both: 2437.2
Both and BiA: 2491.2
Both and Max Crew %: 2599.2

Advantageous Damage Per Minute
First-shot DPM: 2415.6
50% Crew: 2019.6
75% Crew: 2260.8
100% Crew: 2505.6
100% Crew
Rammer: 2743.2
Vents: 2552.4
Both: 2797.2
Both and BiA: 2851.2
Both and Max Crew %: 2959.2

See here, here, or here for more information.

Standard Gun

Using Shell Type 3 (440 Damage):
With wholly penetrating hits

Theoretical Damage Per Minute
Nominal DPM: 2512.4
50% Crew: 2028.4
75% Crew: 2323.2
100% Crew: 2622.4
100% Crew
Vents: 2679.6
Rammer: 2912.8
Both: 2978.8
Both and BiA: 3044.8
Both and Max Crew %: 3176.8

Advantageous Damage Per Minute
First-shot DPM: 2952.4
50% Crew: 2468.4
75% Crew: 2763.2
100% Crew: 3062.4
100% Crew
Rammer: 3352.8
Vents: 3119.6
Both: 3418.8
Both and BiA: 3484.8
Both and Max Crew %: 3616.8

See here, here, or here for more information.
Damage Per Minute


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0.54 m 

With 50% Crew: 0.669 m
With 75% Crew: 0.584 m
With 100% Crew: 0.518 m
With BiA: 0.506 m
With BiA and Vents: 0.495 m
Maximum possible: 0.475 m

For more details, see Crew


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0.54 m 

With 50% Crew: 0.669 m
With 75% Crew: 0.584 m
With 100% Crew: 0.518 m
With BiA: 0.506 m
With BiA and Vents: 0.495 m
Maximum possible: 0.475 m

For more details, see Crew
Accuracy


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2.9 s 

With 50% Crew: 3.592 s
With 75% Crew: 3.137 s
With 100% Crew: 2.781 s
With GLD: 2.528 s
With BiA: 2.719 s
With BiA and Vents: 2.66 s
With both and GLD: 2.418 s
Maximum possible: 2.318 s

For more details, see Crew or Equipment


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2.9 s 

With 50% Crew: 3.592 s
With 75% Crew: 3.137 s
With 100% Crew: 2.781 s
With GLD: 2.528 s
With BiA: 2.719 s
With BiA and Vents: 2.66 s
With both and GLD: 2.418 s
Maximum possible: 2.318 s

For more details, see Crew or Equipment
Aim time
2020 deg/s Turret Traverse
360° Gun Arc
-10°/+20°-10°/+20° Elevation Arc
120120 rounds Ammo Capacity
General
2020 % Chance of Fire






360 m 

With 50% Crew: 282.8 m
With 75% Crew: 321.5 m
With 100% Crew: 360 m
With Recon and Situational Awareness: 378.2 m
With Coated Optics: 396 m
With Binocular Telescope: 450 m
Maximum possible: 515.4 m

For more details, see Skills or Equipment






360 m 

With 50% Crew: 282.8 m
With 75% Crew: 321.5 m
With 100% Crew: 360 m
With Recon and Situational Awareness: 378.2 m
With Coated Optics: 396 m
With Binocular Telescope: 450 m
Maximum possible: 515.4 m

For more details, see Skills or Equipment
View Range


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300 m 

With 50% Crew: 242.2 m
With 75% Crew: 277.4 m
With 100% Crew: 312.9 m
With 100% Signal Boost: 360 m
When affected by 100% Relaying: 330 m
Maximum possible: 450.4 m

For more details, see Skills or Equipment


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425 m 

With 50% Crew: 343.1 m
With 75% Crew: 392.9 m
With 100% Crew: 443.2 m
With 100% Signal Boost: 510 m
When affected by 100% Relaying: 467.5 m
Maximum possible: 638 m

For more details, see Skills or Equipment
Signal Range
Values are Stock - click for Top
O-I Experimental


V

AnnoJ23_Mi_To.png

445000

The O-I Experimental is a Japanese tier 5 heavy tank.

Development of this superheavy tank was initiated by Colonel Iwakuro from the Army Ministry of Japan. The project was carried out by the Mitsubishi company, therefore the vehicle became known as the Mi-To. In the army, the tank was designated the O-I. Details of the project are largely unknown.

The O-I Experimental marks the end of its Japanese heavy line.

Modules / Available Equipment and Consumables

Modules

Ico_gun_alpha.png

Guns

Tier Gun Penetration
(mm)
Damage
(HP)
Rate of fire
(rounds/minute)
Dispersion
(m/100m)
Aiming time
(s)
Weight
(kg)
Price
( Credits)

IV 7.5 cm Tank Gun Type 3 90/112/38 115/115/175 16.67 0.4 2.1 1400 30500
V 7.5 cm Tank Gun Type 5 124/155/38 125/125/175 16.22 0.39 2.3 1489 42500
V 12 cm Short Barrel Gun 60/140/60 360/360/440 5.71 0.54 2.9 634 44000

Ico_turret_alpha.png

Turrets

Tier Turret Turret Armor (front/sides/rear)
(mm)
Turret Traverse Speed
(deg/s)
View Range
(m)
Weight
(kg)
Price
( Credits)

V O-I Experimental 125/75/75 20 360 8000 8000

Ico_engine_alpha.png

Engines

Tier Engine Engine Power
(hp)
Chance of Fire on Impact
(%)
Weight
(kg)
Price
( Credits)

VII 2x Kawasaki Type 98 V-12 (550) 1100 20 1020 51000
VIII 2x Kawasaki Type 98 V-12 (600) 1200 20 1020 77500

Ico_suspension_alpha.png

Suspensions

Tier Suspension Load Limit
(т)
Traverse Speed
(gr/sec)
Rmin Weight
(kg)
Price
( Credits)

O-I Experimental 0 B/2 4000
O-I Experimental Kai 0 B/2 11400

Ico_radio_alpha.png

Radios

Tier Radio Signal Range
(m)
Weight
(kg)
Price
( Credits)

II Type 94 Mk. 4 Otsu 300 40 0
IV Type 94 Mk. 4 Hei 350 90 2350
VI Type 96 Mk. 4 Bo 425 50 14000

Compatible Equipment

Low Noise Exhaust System Class 2 Medium Spall Liner Camouflage Net Class 2 Coated Optics Class 2 Experimental Optics Wear-Resistant Gun Laying Drive Improved Configuration Venting System Innovative Loading System Enhanced Gun Laying Drive Class 2 Improved Hardening Class 2 Additional Grousers Class 2 Modified Configuration Class 2 Improved Rotation Mechanism Class 2 Improved Aiming Class 2 Improved Ventilation Class 2 Binocular Telescope Class 2 Gun Rammer Class 2 Turbocharger Class 2 

Compatible Consumables

Automatic Fire Extinguisher Natural Cover Optical Calibration Aim Tuning Experienced Firefighters Manual Fire Extinguisher Pre-Battle Maintenance Vent Purge Large First Aid Kit Large Repair Kit Duty Comes First Shell Organizer Quality Oil Orderly Ammo Rack Focus on Target Onigiri Increased Focus Small First Aid Kit Small Repair Kit Gearbox Intricacy Steady Hand Combat Course 


Player Opinion

Pros and Cons

Pros:


  • 300 Alpha damage for 10cm gun, unheard of, and best in class. Good reload time for its alpha damage, essentially providing go
  • Good top speed that is easily reached on flat ground. 100 ton tank that can deal extreme ramming damage when coupled with the
  • 10 degrees of gun depression
  • The best tank in the entire japanese heavy line. Every tank afterwards is worse tier for tier.


Cons:


  • Largest tank ever at Tier 5, easy to hit, and camo is very poor
  • Armor is rather flat and even when properly angled at 45 degrees the mini-turrets on the hull front mitigate it, 10cm gun has
  • Weak fuel tanks, penetrating shots to the rear will often result in fire.
  • The only good tank in a otherwise awful line.


Performance

Being a very large replacement for the poorly armored Type 95 ,The O-I Experimental is a very strong tank. 300 alpha is unheard of for tier 5 heavies since the removal of 107mm on the KV tank, and the only other tank to have 300 alpha at tier 5 is the French S-35CA with the 105mm gun. Coupled with surprisingly good mobility and extremely good gun handling, it is extremely good at peek-a-boom and midrange snapshots. The Type 5 7.5cm gun is not to be dismissed as another stock gun to un-mount and sell, however. Players who have used the Chi-Nu and the Chi-Nu Kai know what the Type 5 gun is capable of. In the O-I Experimental, the Type 5 gun unloads rounds as fast as a T1 Heavy but retains much of the accuracy and gun-handling it is known for. An O-I Experimental with the Type 5 gun is entirely capable of mowing-down lower tier tanks from mid- to long-range before they deal any significant damage. Another important feature to be noted is the -10 degrees of gun depression: You can hulldown peek-a-boom very easily and without a giant cupola on the turret, exposure while doing so is minimal. Last but not least, the armor is decent, there is no frontal "weakspot" to speak of, with some angling it will bounce same tier 75mm~76mm rounds with reliability. Being by far the best tank in the entire line, it is not recommended to continue this line beyond this tank.


Early Research

Due to the fact that you can mount everything with the stock suspension, it is recommended that you start with getting the XP for the guns. try to get the 10 cm if you can. Top engine, suspension, and radio is secondary.

The two 7.5cm may already be unlocked from the tier 5 medium Chi-Nu. Otherwise, you have the stock 12cm derp gun to use. The stock derp gun is similar to the Russian U-11 122mm derp gun in performance, but has noticeably slower shell velocity; therefore players should try to get close to the enemy to have a decent chance of hitting the enemy. The stock 12cm leads to both the 75mm guns and the main feature of this box of a tank: the 10cm. The 10cm cannon is required to unlock the O-I and is well worth the upgrade as it is the only heavy tank that does 300 damage per shot in tier 5, and does it with good precision, fire control, and good reload rate to boot. The only drawback of this gun is that the premium AP round does not offer significant penetration advantage over the standard AP, and may run into trouble facing heavily armored tanks in higher tiers, so be sure to read the teamlist for expected enemies at each map location and plan ahead.

Stock suspension is good enough to handle every module, but upgraded one can make the tank noticeably more nimble. Consider using the 120 mm Short barrel until you get enough Xp to get the 10 cm, as that should make the grind worth the effort. But, If you want to use the 75 or 76 mm gun first, you can, but, this course of action is not recommended. The upgraded engine is quite expensive in terms of XP, but this engine carries over right up the line of heavy tanks. It only adds 9% engine power so it's marginal if it is worth the investment. The radios also carry over up the line.


Gallery

Historical Info

After the Battles of Khalkhin Gol with Soviet Union in 1939, Japan tried to improve its tank design using lessons learnt from this battle. Many Japanese tanks such as Type 95 Ha-Go light tank and Type 97 Chi-Ha medium tanks were proven to be insufficient to encounter Soviet armored forces. Larger tank design was urgently needed. A super heavy tank project was proposed along with new medium tank designs.


In 1940, Hideo Iwakuro Colonel from the Army Ministry of Japan (陸軍省 Rikugun-shō) ordered the Army Engineering Division to develop a new super heavy tank. Iwakuro Colonel also indicated that the new tank should be at least two times larger than the current Type 95 Heavy Tank(26 tonnes).

The fifth Army Engineering Division carried out the project secretly and completed a partially complete prototype. The tank didnt have turrets or main armament mounted on and it weighted 97 tonnes. On full weight, the tank, known as "O-I", was supposed to weight up to 150 tons. The built prototype reached speed of 40kph on road, but with full weight it would have been much slower.

The frontal hull of the tank was protected by a 75 mm thick armor and another 75 mm steel plate could be attached to provide additional protection. The side armor of the tank was only 35 mm but it could also attach 35 mm steel plate if needed.

During test trials, engineers realized that it would be highly challenging to deploy this tank. The weight of O-I tank added too much pressure on its suspension system and made it impossible to pass through uneven terrain. The prototype was therefore left in the factory and was scrapped in 1944 and its blueprint was later lost in the war.


Historical Gallery

Historical Accuracy Errata

The following are consensus errors or inconsistencies which have been identified with the configuration of the vehicle in question and conflict with information available on the public record. The causes for these divergences in the game are normally not disclosed and may be rooted in game balance.

O-I Experimental, i.e the "built" version of O-I, has lots of historical inaccuraties:
  • None of the armaments were never considered on O-I; the O-I Experimental itself didnt have armament mounted on. The main turret and 150 gun were supposed to be mounted later.
  • Tank is incorrectly smaller than O-I in all dimensions.
  • Miniturret shapes doesnt match the miniturrets the O-I had. O-I Experimental also didnt have turret and miniturrets mounted at all.
  • O-I "Experimental" is slightly heavier in-game than the real-life built prototype.


Japan
Light Tanks IRenault Otsu IIType 95 Ha-Go IIType 97 Te-Ke IIIType 97 Chi-Ha IIIType 98 Ke-Ni IVType 5 Ke-Ho
Medium Tanks IIChi-Ni IIType 89 I-Go/Chi-Ro IVType 1 Chi-He VType 3 Chi-Nu VType 3 Chi-Nu Kai VIType 4 Chi-To VIIType 5 Chi-Ri VIIISTA-1 VIIISTA-2 IXType 61 XSTB-1
Heavy Tanks IIIType 91 Heavy IVType 95 Heavy VO-I Experimental VIHeavy Tank No. VI VIO-I VIIO-Ni VIIIO-Ho IXType 4 Heavy XType 5 Heavy
Tank Destroyers
Self-Propelled Artillery
Heavy Tanks
USA VT14 VT1 Heavy Tank VIM6 VIIKing Tiger (Captured) VIIT29 VIIIChrysler K VIIIChrysler K GF VIIIT26E5 VIIIT26E5 Patriot VIIIM54 Renegade VIIIT77 VIIIM6A2E1 VIIIT32 VIIIT34 VIIIT34 B IXAE Phase I IXConcept 1B IXM103 IXT54E1 XT110E5 XT57 Heavy Tank
UK VChurchill I VExcelsior VIChurchill VII VITOG II* VIIBlack Prince VIIFV201 (A45) VIIICaernarvon VIIICaernarvon Action X IXConqueror XFV215b XSuper Conqueror XT95/FV4201 Chieftain
Germany IVPz.Kpfw. B2 740 (f) IVDurchbruchswagen 2 VITiger 131 VIVK 30.01 (P) VIVK 36.01 (H) VIIVK 45.03 VIITiger I VIITiger (P) VIIIVK 100.01 (P) VIIIVK 168.01 (P) VIIIVK 168.01 Mauerbrecher VIIIVK 75.01 (K) VIIIE 75 TS VIIILöwe VIIITiger II VIIIVK 45.02 (P) Ausf. A IXE 75 IXMäuschen IXVK 45.02 (P) Ausf. B XE 100 XPz.Kpfw. VII XMaus XVK 72.01 (K)
France IVB1 VBDR G1 B VIARL 44 VIIAMX M4 mle. 45 VIIIAMX 50 100 VIIIAMX M4 mle. 49 VIIIAMX M4 mle. 49 Liberté VIIIAMX 65 t VIIISomua SM VIIIFCM 50 t IXAMX 50 120 IXAMX M4 mle. 51 XAMX 50 B XAMX M4 mle. 54
USSR VChurchill III VKV-220-2 VKV-220-2 Beta Test VKV-1 VIKV-1S VIKV-2 VIKV-2 (R) VIKV-85 VIObject 244 VIT-150 VIIIS VIIKV-3 VIIKV-122 VIIIS-2M VIIIS-2 shielded VIIIS-2 VIIIIS-3 VIIIIS-6 VIIIIS-6 B VIIIKV-5 VIIIKV-4 VIIIIS-5 (Object 730) VIIIIS-3A VIIIKV-4 Kreslavskiy VIIIObject 252U Defender VIIIObject 252U VIIIIS-M VIIIObject 703 Version II VIIIIS-2-II IXT-10 IXObject 777 Version II IXObject 257 IXObject 705 IXIS-3-II IXST-I XIS-4 XIS-7 XObject 260 XObject 705A XObject 277 XObject 279 early XST-II
China VIIIS-2 VIIIWZ-111 VIIIWZ-111 Alpine Tiger VIII110 VIII112 IXWZ-111 model 1-4 X113 XWZ-111 model 5A
Japan IIIType 91 Heavy IVType 95 Heavy VO-I Experimental VIHeavy Tank No. VI VIO-I VIIO-Ni VIIIO-Ho IXType 4 Heavy XType 5 Heavy
Czechoslovakia
Sweden VIIIEmil I VIIIEMIL 1951 IXEmil II XKranvagn
Italy VIIIBisonte C45
Poland VII45TP Habicha VIII50TP prototyp VIII53TP Markowskiego IX50TP Tyszkiewicza X60TP Lewandowskiego
ja:Tank:J23 Mi To